concussion

名词 concussion:

1. injury to the brain caused by a blow; usually resulting in loss of consciousness
2. any violent blow

1. The patient is suffering from severe concussion following a blow to the head.
   患者头部受击後患严重脑震荡。

con.cus.sion

n.（名词）
A violent jarring; a shock.See Synonyms at collision
震荡：剧烈的掸击；震荡参见 collision
An injury to an organ, especially the brain, produced by a violent blow and followed by a temporary or prolonged loss of function.
脑震荡：脑震荡，对器官特别是大脑因受猛烈撞击而造成暂时或长期的功能丧失伤害

来源：
Middle English concussioun [bruise, contusion]
中古英语 concussioun [擦伤，挫伤]
from Latin concussiô concussiôn- [concussion]
源自 拉丁语 concussiô concussiôn- [震荡]
from concussus [past participle of] concutere [to strike together] * see concuss
源自 concussus [] concutere的过去分词 [一起打] *参见 concuss

【引伸】
concus.sive
concus.sively
adv.（副词）